Fire extinguishing system and fire extinguishing method

Abstract

To provide a fire extinguishing system and fire extinguishing method for a floor surface of a large space and a high-ceiling part, that can be made at low cost and can be installed in a smaller installation space.SOLUTION: A fire extinguishing system X for extinguishing fire by discharging fire extinguishing agent on a floor surface of a large space and a high-ceiling part, includes: a detection part 9X for detecting breakout of fire on the floor surface of the large space and the high-ceiling part; a discharge monitor 1X having a monitor nozzle 3X for discharging fire extinguishing agent; and a monitor control part 5X for driving and controlling the discharge monitor 1X by aligning the monitor nozzle 3X toward the fire breakout position. When the breakout of the fire is detected on the floor surface of the large space and the high-ceiling part by the detecting part 9X, the fire breakout position on the floor surface of the large space and the high-ceiling part is detected based on the detection signal of the detecting part 9X, and the discharge monitor control part 5X is controlled so as to align the monitor nozzle 3X towards the identified fire breakout position.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a fire extinguishing system and a fire extinguishing method for extinguishing a fire that breaks out in a large-scale commercial facility having a large space and a high ceiling. [Background technology]

[0002] 2. Description of the Related Art Conventionally, large-scale commercial facilities having large spaces and high ceilings are equipped with fire extinguishing systems in anticipation of the occurrence of fires and the like.

[0003] Conventionally, fire extinguishing systems to protect floors in high-ceilinged areas in large commercial facilities have used water-discharging sprinkler equipment that discharges water from a monitor nozzle. However, this fire extinguishing system used an encoder-type servo motor to drive the monitor nozzle, which discharges the fire water as a fire extinguishing agent, to a specified discharge angle so that it was aimed at the desired position.

[0004] Here, the floor surface protected by the water discharge sprinkler system refers to the area where the vertical distance between the floor surface and the ceiling exceeds 10 m, and in cases where there is a large amount of combustible material and it is deemed difficult to extinguish the fire, the area where the vertical distance between the floor surface and the ceiling exceeds 6 m. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2012-181814 A [Patent Document 2] JP 2013-257735 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, conventional water discharge monitor fire extinguishing systems using encoder-type servo motors have problems such as being basically costly due to the expensive servo motors and requiring a large installation space.

[0007] The present invention has been made in consideration of the above problems, and an object of the present invention is to provide a fire extinguishing system and a fire extinguishing method for a large-scale commercial facility that are inexpensive and require a compact installation space. [Means for solving the problem]

[0008] A first invention is a fire extinguishing system for a building having a large space and a high ceiling for extinguishing a fire on the floor surface of a large space or a high ceiling by discharging an extinguishing agent, the system comprising: a detection unit for detecting the occurrence of a fire on the floor surface of the large space or the high ceiling; a monitor having a monitor nozzle for discharging the extinguishing agent; a monitor control unit for driving and controlling the monitor to aim the monitor nozzle at a location of the fire; and when a fire is detected on the floor surface of the large space or the high ceiling by the detection unit, a control means for identifying the location of the fire on the floor surface of the large space or the high ceiling based on a detection signal from the detection unit and controlling the monitor control unit to aim the monitor nozzle at the identified location of the fire, when a fire occurs on the floor surface of the large space or the high ceiling and the monitor nozzle is aimed at the location of the fire, the control means time-controls a gear motor with a brake to drive the monitor nozzle of the monitor and controls the monitor control unit to discharge the extinguishing agent from the monitor nozzle aimed at the location of the fire. The motor of the gear motor with brake is a servo motor-a motor that does not use an encoder.

[0009] The second invention is a fire extinguishing system according to the first invention, wherein the gear motor with brake comprises a non-excitation operated brake and motor, and the time control of the gear motor with brake by the monitor control unit determines the time for the monitor nozzle to reach the aiming position based on the moving speed of the monitor nozzle by the motor, and drives and controls the brake so as to drive the monitor nozzle by the motor for only that time.

[0010] A third invention is a fire extinguishing system according to the second invention, further comprising a pressurized water supply equipment section for supplying the extinguishing agent to the monitor via a pipe for the extinguishing agent, the extinguishing agent being extinguishing water.

[0011] A fourth invention is a fire extinguishing system according to the third invention, wherein the monitor control unit is provided with an operation unit for setting the aim position of the monitor nozzle according to the area on the floor surface of the large space or high ceiling portion, and the monitor control unit works in conjunction with the operation unit to set the aim position of the monitor nozzle according to the area.

[0012] A fifth aspect of the present invention is the fourth aspect of the present invention, in which the operation unit is a handy touch panel display.

[0013] A sixth aspect of the present invention is the fire extinguishing system according to any one of the first to fifth aspects of the present invention, wherein the floor surface of the large space and high ceiling portion is a floor surface of a large space and high ceiling portion in a large-scale commercial facility.

[0014] A seventh invention is a fire extinguishing method for a fire extinguishing system including a detection unit that detects the occurrence of a fire on the floor surface of a large space or a high ceiling portion, a monitor having a monitor nozzle for discharging a fire extinguishing agent, a monitor control unit that drives and controls the monitor to aim the monitor nozzle at a location of the fire, and a control means for controlling the monitor control unit, the method including a step of detecting the occurrence of a fire on the floor surface of the large space or the high ceiling portion by the detection unit, and when the occurrence of a fire on the floor surface of the large space or the high ceiling portion is detected by the detection unit, a step of controlling the control unit to detect the occurrence of a fire on the floor surface of the large space or the high ceiling portion by the control unit based on a detection signal from the detection unit. The method includes a step of identifying a location of a fire on the floor surface of the ceiling portion, a step of controlling the monitor control unit by the control means to aim the monitor nozzle at the identified location of a fire on the floor surface of the large space and high ceiling portion, and a step of discharging the extinguishing agent from the monitor nozzle aligned with the location of the fire, and when a fire occurs on the floor surface of the large space and high ceiling portion and the monitor nozzle is aligned with the location of the fire, a gear motor with a brake is time-controlled to drive the monitor nozzle of the monitor, and the extinguishing agent is discharged from the monitor nozzle aligned with the location of the fire. In addition, the motor of the gear motor with brake is a servo motor / motor that does not use an encoder.

[0015] The eighth invention is a fire extinguishing method according to the seventh invention, in which the time control of the gear motor with brake determines the time for the monitor nozzle to reach the aiming position based on the moving speed of the monitor nozzle by the motor, and drives and controls the brake so as to drive the monitor nozzle by the motor for only that time.

[0016] A ninth invention is a fire extinguishing method according to the seventh or eighth invention, wherein the fire extinguishing system further has a pressurized water supply equipment section for supplying the fire extinguishing agent to the monitor through a pipe for the fire extinguishing agent, and fire water is used as the fire extinguishing agent.

[0017] A tenth invention is a fire extinguishing method according to the eighth invention, wherein the monitor control unit is provided with an operation unit for setting the aim position of the monitor nozzle according to the area on the floor surface of the large space or high ceiling portion, and the monitor control unit works in conjunction with the operation unit to set the aim position of the monitor nozzle according to the area.

[0018] An eleventh aspect of the present invention is the tenth aspect of the present invention, in which the operation unit is a handy touch panel display. Effect of the Invention

[0019] According to the present invention, in a fire extinguishing system for a large space or high ceiling of a large commercial facility, etc., (1) since a servo motor, encoder, and repeater panel as in the conventional system are not used, it is inexpensive and requires a compact installation space, and (2) the system maintenance is easy and quick and effective fire extinguishing is possible. [Brief description of the drawings]

[0020] [Figure 1] 1 is an explanatory plan view of a large space and high ceiling area of ​​a large commercial facility such as a shopping mall in which an embodiment of a fire extinguishing system according to the present invention is installed. [Diagram 2] FIG. 2 is an explanatory front view of the large space and high ceiling of the large-scale commercial facility shown in FIG. [Diagram 3] 2 is an overall configuration diagram of a fire extinguishing system X having the water discharge monitor 1x shown in FIG. [Figure 4] 4 is a schematic plan view showing the configuration of a sensing unit 9x shown in FIG. 3. [Diagram 5] 4 is an explanatory diagram of a detection signal input to the water-discharge sprinkler system control panel 14x shown in FIG. 3. [Figure 6] 4A to 4C are diagrams showing the configuration of the water-discharging monitor 1x shown in FIG. 3, where (a) is a front view of the water-discharging monitor 1x, (b) is a side view of the water-discharging monitor 1x, and (c) is a bottom view of the water-discharging monitor 1x. [Figure 7]FIG. 7 is a diagram showing the configuration of the rotation motor 1x8 and the elevation motor 1x13, which are configured as gear motors with brakes shown in FIG. 6. [Figure 8] This is a drive circuit diagram for the rotation motor 1x8 and the elevation motor 1x13. [Figure 9] 13 is a flowchart of a timer setting method for controlling the rotation time of the rotation motor 1x8 and the elevation motor 1x13. [Figure 10] FIG. 4 is a front view of the handy touch panel display 6x shown in FIG. [Figure 11] 13 is an explanatory diagram showing a display screen for setting the reference position of a monitor nozzle 3x on a handy touch panel display 6x. FIG. [Figure 12] FIG. 13 is an explanatory diagram showing a schematic view of the orientation of a monitor nozzle 3x of a water-discharge monitor 1x according to timer settings for controlling rotation time in areas A to H of the floor surface of a large space in a high-ceilinged portion of a large commercial facility. [Figure 13] 1 is an explanatory diagram showing a seconds input screen 6x5 on a handy touch panel display 6x. [Figure 14] 13 is an explanatory diagram showing a display screen for setting a timer for controlling the rotation time of a monitor nozzle 3x in an area A of a handy touch panel display 6x. FIG. [Figure 15] 1 is an explanatory diagram showing a schematic diagram of the orientation of a monitor nozzle 3x according to timer settings for controlling rotation time in area A on the floor surface of a large space with a high ceiling. FIG. [Figure 16] 4 is a flowchart of a fire extinguishing method in the fire extinguishing system shown in FIGS. 1 to 3. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0022] The feature of the present invention is that in a fire extinguishing system for protecting the floor surface of a large space and a high ceiling part in a large commercial facility such as a shopping mall, the location of a fire is automatically detected, and the monitor nozzle of the water discharge monitor is driven by time control of a gear motor with a brake so as to aim the monitor nozzle of the water discharge monitor at the location of the fire and discharge water. Here, the water discharge monitor is a device that discharges a large amount of fire extinguishing agent from a nozzle.

[0023] This allows for a significant reduction in equipment costs and a more compact installation space compared to when an encoder-type servo motor is used.

[0024] FIG. 1 is an explanatory plan view of the large space and high ceiling portion of a large-scale commercial facility such as a shopping mall in which one embodiment of the fire extinguishing system according to the present invention is installed, and FIG. 2 is an explanatory front view of the large space and high ceiling portion of the large-scale commercial facility shown in FIG. 1.

[0025] In one embodiment of this fire extinguishing system, as shown in FIG. 1, the floor surface of a large space with a high ceiling in a large-scale commercial facility is divided into eight rectangular areas AH.

[0026] A fire extinguishing system X is provided in the large space and high ceiling area of ​​the large commercial facility, and a water discharge monitor 1x of the fire extinguishing system X is attached to the upper part of the left side wall of the large space and high ceiling area of ​​the large commercial facility, as shown in Figs. 1 and 2.

[0027] In this embodiment, one water-discharge monitor (monitor) 1x is installed in a large space in a large commercial facility, in a high ceiling portion, but a plurality of similar water-discharge monitors may be installed.

[0028] FIG. 3 is a diagram showing the overall configuration of a fire extinguishing system X having the water-discharge monitor 1x shown in FIG.

[0029] As shown in FIG. 3, the fire extinguishing system X first includes a water-discharge monitor 1x having a monitor nozzle 3x for discharging fire-extinguishing water as a fire-extinguishing agent onto the floor surface of a large space and a high ceiling in a large commercial facility, a water-discharge monitor control unit (monitor control unit) 5x for controlling the drive of the monitor nozzle 3x to a predetermined discharge angle so that the monitor nozzle 3x is at the aiming position, and a pressurized water supply equipment unit 7x for supplying fire-extinguishing water to the water-discharge monitor 1x via a water supply pipe 7x13.

[0030] Furthermore, the fire extinguishing system X has a detection unit 9x for detecting the location of a fire on the floor of a large space or high ceiling in a large commercial facility, and a water-discharge type sprinkler equipment control panel 14x as control means for controlling the water-discharge monitor control unit 5x and the pressurized water supply equipment unit 7x so that fire-extinguishing water is discharged to the location of a fire on the floor of the large space or high ceiling based on the location of a fire on the floor of the large space or high ceiling detected by the detection unit 9x.

[0031] The detector 9x is for detecting the location of a fire on the floor of a large space or high ceiling in a large commercial facility. That is, the detector 9x is configured to detect the location of a fire in each of eight areas A to H on the floor of a large space or high ceiling in a large commercial facility.

[0032] Fig. 4 is a schematic diagram showing the configuration of the sensing unit 9x shown in Fig. 3. Fig. 4 is a schematic plan view of a large space and a high ceiling in a large commercial facility as seen from above.

[0033] As shown in FIG. 4, the detection unit 9x includes five flame detectors A1-A5, B1-B5, C1-C5, D1-D5, E1-E5, F1-F5, G1-G5, and H1-H5 arranged in each of eight areas A-H on the floor of a large space and high ceiling area within a large commercial facility.

[0034] In this embodiment, as shown in FIG. 4, the arrangement of flame detectors A1-A5, B1-B5 in area A of the floor surface of the large space and the high ceiling portion and area B of the floor surface of the large space and the high ceiling portion, the arrangement of flame detectors C1-C5, D1-D5 in area C of the floor surface of the large space and the high ceiling portion and area D of the floor surface of the large space and the high ceiling portion, the arrangement of flame detectors E1-E5, F1-F5 in area E of the floor surface of the large space and the high ceiling portion and area F of the floor surface of the large space and the high ceiling portion, and the arrangement of flame detectors G1-G5, H1-H5 in area G of the floor surface of the large space and the high ceiling portion and area H of the floor surface of the large space and the high ceiling portion are all similar to each other.

[0035] First, the arrangement of flame detectors in area A on the floor of the large space and high ceiling consists of a system (a) of flame detectors A1 to A3 and a system (e) of flame detectors A4 and A5. The arrangement of flame detectors in area B on the floor of the large space and high ceiling consists of a system (b) of flame detectors B1 to B3 and a system (e) of flame detectors B4 and B5, and system (e) of flame detectors A4 and A5 and system (e) of flame detectors B4 and B5 are connected to form a single system (e).

[0036] The arrangement of flame detectors in area C on the floor of the large space and high ceiling consists of a system (c) of flame detectors C1 to C3 and a system (f) of flame detectors C4 and C5. The arrangement of flame detectors in area D on the floor of the large space and high ceiling consists of a system (d) of flame detectors D1 to D3 and a first system (f) of flame detectors D4 and D5. System (f) of flame detectors C4 and C5 and system (f) of flame detectors D4 and D5 are connected to form a single system (f).

[0037] The arrangement of flame detectors in area E of the floor of the large space and high ceiling consists of a system (g) of flame detectors E1 to E3 and a system (k) of flame detectors E4 and E5. The arrangement of flame detectors in area F of the floor of the large space and high ceiling consists of a system (h) of flame detectors F1 to F3 and a system (k) of flame detectors F4 and F5, with system (k) of flame detectors E4 and E5 and system (k) of flame detectors F4 and F5 connected to form a single system (k).

[0038] The arrangement of flame detectors in area G on the floor of the large space and high ceiling consists of a system (i) of flame detectors G1 to G3 and a system (l) of flame detectors G4 and G5. The arrangement of flame detectors in area H on the floor of the large space and high ceiling consists of a system (j) of flame detectors H1 to H3 and a system (l) of flame detectors H4 and H5, with the system (l) of flame detectors G4 and G5 and the system (l) of flame detectors H4 and H5 connected to form a single system (l).

[0039] FIG. 5 is an explanatory diagram of a detection signal input to the water-discharge type sprinkler system control panel 14x.

[0040] As shown in FIG. 5, systems (a) to (l) from flame detectors A1 to A5, B1 to B5, C1 to C5, D1 to D5, E1 to E5, F1 to F5, G1 to G5, and H1 to H5 in eight areas A to H of the floor of a large space and high ceiling area within a large commercial facility are connected to a water discharge type sprinkler equipment control panel 14x, and detection signals from flame detectors A1 to A5, B1 to B5, C1 to C5, D1 to D5, E1 to E5, F1 to F5, G1 to G5, and H1 to H5 are input to the water discharge type sprinkler equipment control panel 14x.

[0041] Here, systems (a) to (d) and (g) to (j) are systems for identifying areas, and systems (e), (f), (k), and (l) are systems for AND.

[0042] The water-discharge sprinkler equipment control panel 14x determines in which of the eight areas A to H on the floor surface of the large space and high ceiling area a fire has occurred based on detection signals sent from flame detectors A1 to A5, B1 to B5, C1 to C5, D1 to D5, E1 to E5, F1 to F5, G1 to G5, and H1 to H5 via systems (a) to (l), and controls the water-discharge monitor control unit 5x and the pressurized water supply equipment unit 7x.

[0043] Information on the fire occurrence area identified in the water discharge type sprinkler system control panel 14x is sent from the water discharge type sprinkler system control panel 14x to the water discharge type sprinkler system on-site operation panel 15x.

[0044] Next, the pressurized water supply unit 7x will be described with reference to FIG.

[0045] As shown in FIG. 3, the pressurized water supply equipment section 7x is configured to include a fire water tank (underground fire water tank) 7x1, a fire pump 7x3, a pump control panel 7x5, and a pressure tank 7x7.

[0046] Fire water tank (water storage tank) 7x1 is appropriately supplied with fire water 7x11 from a fire water supply source, and this supplied fire water 7x11 is stored. The height position of fire water tank 7x1 from the ground or floor is not specified. Make-up water supply unit 7x9 is a priming device that fills the pump and pipes with water when the water level of the water source is lower than the pump.

[0047] When the fire pump 7x3 is operating, fire water 7x11 is supplied to the water discharge monitor 1x through the pipe 7x13. Compressed air is also pumped into the pressure tank 7x7. The pressure tank 7x7 is also provided with a pressure switch 7x15 that detects the drop in air pressure in the pressure tank 7x7 caused by the drop in pressure in the pipe 7x13 after water discharge. The pressure switch 7x15 detects the drop in pressure and automatically starts the fire pump 7x3.

[0048] The automatic water discharge valve 7x17 is provided with a pressure switch that can detect the secondary water pressure, and is configured to detect the flow of fire water 7x11 in pipe 7x13 on the secondary side of the automatic water discharge valve 7x17.

[0049] When the automatic water discharge valve 7x17 is closed and pressurized fire water 7x11 is being filled from the secondary side of the fire pump 7x3 to the automatic water discharge valve 7x17, an open signal is output from the water discharge type sprinkler system control panel 14x or the water discharge type sprinkler system on-site operation panel 15x to the solenoid valve in the automatic water discharge valve 7x17. This causes the automatic water discharge valve 7x17 to open, and the fire water 7x11 is supplied to the water discharge monitor 1x via the pipe 7x13.

[0050] When the automatic water discharge valve 7x17 is in the open state, a closing signal is output from the water discharge type sprinkler equipment control panel 14x or the water discharge type sprinkler equipment on-site operation panel 15x to the solenoid valve in the automatic water discharge valve 7x17, causing the automatic water discharge valve 7x17 to close.

[0051] With the fire pump 7x3 stopped, the fire water 7x11 is discharged from the water discharge monitor nozzle 3x, and the pressure switch 7x15 detects a drop in the pressure of the fire water 7x11 (compressed air) in the pipe 7x13 (pressure tank 7x7). This detection starts the fire pump 7x3.

[0052] In addition, the water discharge monitor control unit 5x is connected to a handy touch panel display 6x for setting the aiming position of the monitor nozzle 3x according to eight areas A to H of the floor surface of the large space and high ceiling area in a large commercial facility, and as will be described later, sets the aiming position of the monitor nozzle 3x according to the area in conjunction with the handy touch panel display 6x.

[0053] The water discharge monitor 1x is equipped with 8x ITV cameras for checking the fire extinguishing status, etc.

[0054] In addition, the water discharge type sprinkler system control panel 14x is provided with an ITV control panel 13x that displays images from the ITV camera 8x on a display unit and controls the operation of the ITV camera 8x.

[0055] Next, the configuration of the water discharge monitor 1x will be described with reference to FIG.

[0056] FIG. 6 is a diagram showing the configuration of the water-discharging monitor 1x shown in FIG. 3, where (a) is a front view of the water-discharging monitor 1x, (b) is a side view of the water-discharging monitor 1x, and (c) is a bottom view of the water-discharging monitor 1x.

[0057] As shown in Figure 6, the water discharge monitor 1x has a base 1x3 containing a pipe 1x1 through which fire extinguishing water 7x11 from pipe 7x13 passes, a main pipe 1x5 provided on the underside of the base 1x3 to connect to the pipe 1x13, a rotation limit switch 1x6 and a rotation base 1x7 provided on the underside of the main pipe 1x5, a rotation motor 1x8 provided on the side of the rotation base 1x7, a T-shaped pipe 1x9 provided on the underside of the rotation base 1x7, a tilt limit switch 1x10 and a connection box 1x11 provided on the underside of the T-shaped pipe 1x9, a tilt motor 1x13 provided on the underside of the connection box 1x11, and a nozzle connection port 1x15 provided on the side of the connection box 1x11.

[0058] The nozzle connection port 1x15 is provided with a monitor nozzle 3x.

[0059] In addition, the rotation limit switch 1x6 is designed to be switched on when the monitor nozzle 3x is positioned 90° on either side of the front position shown in Figure 6(c), and the elevation limit switch 1x10 is designed to be switched on when the monitor nozzle 3x is positioned 15° and 70° above and below the front position shown in Figure 6(a).

[0060] As described later, the monitor nozzle 3x is set to the reference position when the rotation limit switch 1x6 detects that the monitor nozzle 3x has reached the left rotation limit and when the elevation limit switch 1x10 detects that the monitor nozzle 3x has reached the upper elevation limit.

[0061] The rotation motor 1x8 and the elevation motor 1x13 are each composed of a gear motor with a brake, as described below.

[0062] Next, with reference to FIG. 7, the configurations of the rotation motor 1x8 and the elevation motor 1x13, which are each constituted by a gear motor with a brake as shown in FIG. 6, will be described.

[0063] FIG. 7 is a configuration diagram of rotation motor 1x8 and elevation motor 1x13, which are composed of gear motors with brakes shown in FIG. 6, and FIG. 8 is a drive circuit diagram of rotation motor 1x8 and elevation motor 1x13.

[0064] The 1x8 rotation motor and 1x13 elevation motor have the same configuration.

[0065] As shown in Fig. 7, the gear motor 20 with a brake is composed of a non-excitation actuated (spring-closed) brake 20a and a motor 20b. Here, the non-excitation actuated brake 20a of the gear motor 20 with a brake may be equipped with a brake clutch unit.

[0066] The brake 20a includes an armature 20a1, a spring 20a3, a coil portion 20a5, and a brake pad 20a7 provided along an output shaft 20b1 of the motor 20b.

[0067] In the OFF state where no power is supplied to the coil portion 20a5, the armature 20a1 comes into close contact with the brake pad 20a7 due to the biasing force of the spring 20a3, applying the brake, and in the ON state where power is supplied to the coil portion 20a5, the armature 20a1 moves away from the brake pad 20a7, and is released from the brake. The motor 20b is constantly driven to rotate.

[0068] As shown in Figure 8, the drive circuit 21 of the gear motor 20 with a brake has a power supply unit 21a that supplies power to the brake 20a and the motor 20b, respectively, a switch unit 21b that turns on and off the power supplied from the power supply unit 21a, and a rectifier 21c that rectifies the power supplied from the power supply unit 21a, and the brake 20a and the motor 20b are controlled to be driven by turning on and off the switch unit 21b based on a control drive signal from the water discharge monitor control unit 5x.

[0069] The output shafts of the rotation motor 1x8 and the elevation motor 1x13 configured as described above are connected to the rotation drive gear and elevation drive gear of the monitor nozzle 3x via a specified gear box, respectively, and drive the monitor nozzle 3x to a specified discharge angle so that it is at the aiming position. The configuration of the above drive gears is common, so a description will be omitted.

[0070] In this embodiment, as will be described later, the monitor nozzle 3x moves at a constant rotational speed of 0.15 sec / 1°.

[0071] In this embodiment, the gear motor 20 with brake is a single-phase induction motor with a voltage of 200V and an output of 90W.

[0072] Furthermore, in this embodiment, the input voltage of the brake 20a of the non-excitation operation type of the gear motor 20 is 90V DC.

[0073] This eliminates the need for an expensive control method such as inverter control, and allows the rotation time to be controlled and stopped accurately by setting a timer, enabling accurate aiming to be performed at low cost.

[0074] Next, a fire extinguishing method in the fire extinguishing system shown in FIGS. 1 to 3 will be described with reference to FIGS.

[0075] First, in a fire extinguishing system embodying the present invention, before the system is started, timers are set to control the rotation times of the rotation motor 1x8 and the elevation motor 1x13 so that the aim position of the monitor nozzle 3x is located on the area where the fire has started on the floor of the large space with a high ceiling as described above.

[0076] The timer settings for controlling the rotation times of the rotation motor 1x8 and the elevation motor 1x13 will be described with reference to Figs.

[0077] The timer settings for controlling the rotation time of the rotation motor 1x8 and the elevation motor 1x13 are performed using the handy touch panel display 6x.

[0078] FIG. 9 is a flowchart of a method for setting timers for controlling the rotation times of the rotation motor 1x8 and the elevation motor 1x13.

[0079] FIG. 12 shows various areas of a large space and a high ceiling floor surface in a large-scale commercial facility such as a shopping mall in which an embodiment of the fire extinguishing system according to the present invention is installed.

[0080] As shown in FIG. 12, the large space and floor area of ​​a high ceiling portion of a large commercial facility are divided into eight rectangular areas A to H.

[0081] In step 101 of FIG. 9, first, the reference position of the monitor nozzle 3x is set.

[0082] That is, the reference position of the monitor nozzle 3x is set through the handy touch panel display 6x.

[0083] FIG. 10 is a front view of the handy touch panel display 6x, and FIG. 11 is an explanatory diagram showing a display screen for setting the reference position of the monitor nozzle 3x on the handy touch panel display 6x.

[0084] As shown in FIG. 10, a handy touch panel display 6x has a display screen 6x1 on the front surface thereof.

[0085] The display screen 6x1 of the handy touch panel display 6x has a display and input function using liquid crystal, and input operations are performed when the operator touches an icon displayed on the display screen 6x1.

[0086] That is, when the reference setting icon on the display screen 6x1 of the handheld touch panel display 6x shown in FIG. 11 is pressed, a reference position setting display screen is displayed on the display screen 6x1, and when the operator presses the seconds column 6x3 on the reference position setting display screen, a seconds input screen 6x5 as shown in FIG. 13 is displayed.

[0087] The operator inputs the number of seconds into the seconds input screen 6x5 to set the monitor nozzle 3x of the water discharge monitor 1x to the reference position.

[0088] In the case of the water discharge monitor 1x, as shown in FIG. 11, first, the value of the upward operation timer of the elevation motor 1x13 in the elevation direction is set to 18.00 sec using the seconds input screen 6x5 described above, and the value of the left operation timer of the rotation motor 1x8 in the rotation direction is set to 30.00 sec using the seconds input screen 6x5 described above.

[0089] This is because, when the movement speed of the monitor nozzle 3x is 0.15 sec / 1°, the maximum elevation angle is 85°, so the maximum time it takes for the monitor nozzle 3x to return to the upper elevation limit is 85° × 0.15 sec / 1° = 12.75 sec, which is a generous 18.00 sec.

[0090] Similarly, if the movement speed of the monitor nozzle 3x is 0.15 sec / 1°, the maximum rotation angle is 180°, so the maximum time it takes for the monitor nozzle 3x to return to the left rotation limit is 180° × 0.15 sec / 1° = 27 sec, which is set to 30.00 sec with some leeway,

[0091] With this setting, the rotation limit switch 1x6 detects when the monitor nozzle 3x has reached the left rotation limit, and the elevation limit switch 1x10 detects when the monitor nozzle 3x has reached the upper elevation limit, and the monitor nozzle 3x becomes the reference position.

[0092] As shown in FIG. 11, the date on which the setting was made is displayed in the upper right corner.

[0093] Next, in step 103 of FIG. 9, timers are set to control the rotation times of the rotation motor 1x8 and the elevation motor 1x13 in a predetermined area on the floor of a large, high-ceilinged part of a large-scale commercial facility.

[0094] FIG. 12 is an explanatory diagram showing the orientation of the monitor nozzle 3x of the water discharge monitor 1x according to the timer setting for controlling the rotation time in areas A to H on the floor surface of a large space in a high ceiling part of a large commercial facility.

[0095] Here, we will explain the timer settings for controlling the rotation time in area A on the floor surface of a large space with a high ceiling.

[0096] 13 and 14 are explanatory diagrams showing a display screen for setting a timer for controlling the rotation time of the monitor nozzle 3x in the area A of the handy touch panel display 6x.

[0097] That is, as shown in FIG. 14, in the timer settings for rotation time control in area A of the floor surface of a large space with a high ceiling, the value of the downward operation timer of the tilt motor 1x13 in the tilt direction is set to, for example, 6.75 seconds using the seconds input screen 6x5 described above, and the value of the rightward operation timer of the rotation motor 1x8 in the rotation direction is set to, for example, 7.5 seconds using the seconds input screen 6x5 described above.

[0098] As a result, if a fire breaks out in area A on the floor of a large space with a high ceiling and fire extinguishing operation is initiated, the monitor nozzle 3x will rotate 45° downward from the upper elevation limit and rotate 50° to the right from the left rotation limit.

[0099] As a result, as shown in FIG. 15, the direction of the monitor nozzle 3x is changed to face area A so that water is sprayed onto area A on the floor surface of the large space with a high ceiling.

[0100] FIG. 15 is an explanatory diagram that shows a schematic view of the orientation of the monitor nozzle 3x according to the timer setting for controlling the rotation time in area A on the floor surface of a large space in a high ceiling part of a large commercial facility.

[0101] In this embodiment, timer settings are then performed for controlling the rotation times in areas BH on the floor surface of the large space and high ceiling portion.

[0102] That is, in setting the timer for rotation time control in area B of the floor of a large space with a high ceiling, the value of the downward operation timer of the tilt motor 1x13 in the tilt direction is set to, for example, 6.75 seconds using the seconds input screen 6x5 described above, and the value of the rightward operation timer of the rotation motor 1x8 in the rotation direction is set to, for example, 19.5 seconds using the seconds input screen 6x5 described above.

[0103] As a result, if a fire breaks out in area B on the floor of the large space with a high ceiling and a fire extinguishing operation is initiated, the monitor nozzle 3x will rotate 45° downward from the upper limit of elevation and rotate 130° to the right from the left limit of rotation, changing the direction of the monitor nozzle 3x toward area B so that water can be sprayed onto area B on the floor of the large space with a high ceiling.

[0104] In addition, in setting the timer for rotation time control in area C of the floor of a large space with a high ceiling, the value of the downward operation timer of the tilt motor 1x13 in the tilt direction is set to, for example, 5.25 seconds using the seconds input screen 6x5 mentioned above, and the value of the rightward operation timer of the rotation motor 1x8 in the rotation direction is set to, for example, 9 seconds using the seconds input screen 6x5 mentioned above.

[0105] As a result, if a fire breaks out in area C on the floor of the large space with a high ceiling and a fire extinguishing operation is initiated, the monitor nozzle 3x will rotate 35° downward from the upper limit of elevation and rotate 60° to the right from the left limit of rotation, changing the direction of the monitor nozzle 3x toward area C so that water can be sprayed onto area C on the floor of the large space with a high ceiling.

[0106] In addition, in the timer settings for rotation time control in area D of the floor of a large space with a high ceiling, the value of the downward operation timer of the tilt motor 1x13 in the tilt direction is set to, for example, 5.25 seconds using the seconds input screen 6x5 mentioned above, and the value of the rightward operation timer of the rotation motor 1x8 in the rotation direction is set to, for example, 18 seconds using the seconds input screen 6x5 mentioned above.

[0107] As a result, if a fire breaks out in area D on the floor of the large space or high ceiling and a fire extinguishing operation is initiated, the monitor nozzle 3x will rotate 35° downward from the upper limit of elevation and rotate 120° to the right from the left limit of rotation, changing the orientation of the monitor nozzle 3x toward area D so that water can be sprayed onto area D on the floor of the large space or high ceiling.

[0108] In addition, in setting the timer for rotation time control in area E of the floor of a large space with a high ceiling, the value of the downward operation timer of the tilt motor 1x13 in the tilt direction is set to, for example, 3.75 seconds using the seconds input screen 6x5 described above, and the value of the rightward operation timer of the rotation motor 1x8 in the rotation direction is set to, for example, 10.2 seconds using the seconds input screen 6x5 described above.

[0109] As a result, if a fire breaks out in area E on the floor of the large space with a high ceiling and a fire extinguishing operation is initiated, the monitor nozzle 3x will rotate 25° downward from the upper limit of elevation and rotate 68° to the right from the left limit of rotation, changing the orientation of the monitor nozzle 3x toward area E so that water can be sprayed onto area E on the floor of the large space with a high ceiling.

[0110] In addition, in the timer settings for rotation time control in area F of the floor of a large space with a high ceiling, the value of the downward operation timer of the tilt motor 1x13 in the tilt direction is set to, for example, 3.75 seconds using the seconds input screen 6x5 mentioned above, and the value of the rightward operation timer of the rotation motor 1x8 in the rotation direction is set to, for example, 16.8 seconds using the seconds input screen 6x5 mentioned above.

[0111] As a result, if a fire breaks out in area F on the floor of the large space with a high ceiling and a fire extinguishing operation is initiated, the monitor nozzle 3x will rotate 25° downward from the upper limit of elevation and rotate 112° to the right from the left limit of rotation, changing the direction of the monitor nozzle 3x toward area F so that water can be sprayed onto area F on the floor of the large space with a high ceiling.

[0112] In addition, in the timer settings for rotation time control in area G of the floor of a large space or high ceiling, the value of the downward operation timer of the tilt motor 1x13 in the tilt direction is set to, for example, 3 seconds using the seconds input screen 6x5 described above, and the value of the rightward operation timer of the rotation motor 1x8 in the rotation direction is set to, for example, 11.25 seconds using the seconds input screen 6x5 described above.

[0113] As a result, if a fire breaks out in area G on the floor of the large space or high ceiling and a fire extinguishing operation is initiated, the monitor nozzle 3x will rotate 20° downward from the upper limit of elevation and 75° rightward from the left limit of rotation, changing the orientation of the monitor nozzle 3x toward area G so that water can be sprayed onto area G on the floor of the large space or high ceiling.

[0114] In addition, in setting the timer for rotation time control in area H of the floor of a large space or high ceiling, the value of the downward operation timer of the tilt motor 1x13 in the tilt direction is set to, for example, 3 seconds using the seconds input screen 6x5 mentioned above, and the value of the rightward operation timer of the rotation motor 1x8 in the rotation direction is set to, for example, 15.75 seconds using the seconds input screen 6x5 mentioned above.

[0115] As a result, if a fire breaks out in area H on the floor of the large space or high ceiling and a fire extinguishing operation is initiated, the monitor nozzle 3x will rotate 20° downward from the upper limit of elevation and rotate 105° to the right from the left limit of rotation, changing the orientation of the monitor nozzle 3x toward area H so that water can be sprayed onto area H on the floor of the large space or high ceiling.

[0116] In this way, the operation timer value is set so that the monitor nozzle 3x of the water discharge monitor 1x faces upward as the floor area of ​​the large space or high ceiling area moves away from the monitor nozzle 3x. This allows accurate water discharge to be achieved in the area where the fire has occurred.

[0117] Next, in step 105 of FIG. 9, it is determined whether or not timer setting for rotation time control of all areas has been completed. If timer setting for rotation time control of all areas A to H has been completed, timer setting for rotation time control of swivel motor 1x8 and elevation motor 1x13 in areas A to H of the large space and high ceiling floor of a large commercial facility is completed.

[0118] By setting as described above, as shown in FIG. 12, the direction of the monitor nozzle 3x changes to face each of the areas A to H on the floor surface of the large space and high ceiling of a large commercial facility.

[0119] As described above, the contents of the timer setting for the rotation time control set by the handy touch panel display 6x are input to the water-discharging monitor control unit 5x to which the handy touch panel display 6x is connected, and are stored in the water-discharging monitor control unit 5x in association with areas A to H.

[0120] That is, in response to the fire area detected by flame detectors A1-A5, B1-B5, C1-C5, D1-D5, E1-E5, F1-F5, G1-G5, and H1-H5 in eight areas A-H on the floor of the large space and high ceiling part of a large commercial facility, the timer settings for rotation time control in each area A-H stored in the water discharge monitor control unit 5x are read out.

[0121] Next, a method for extinguishing a fire when a fire breaks out in a predetermined area will be described.

[0122] FIG. 16 is a flowchart of a fire extinguishing method in the fire extinguishing system shown in FIGS.

[0123] In step 201 of FIG. 16, a fire is detected by flame detectors A1-A5, B1-B5, C1-C5, D1-D5, E1-E5, F1-F5, G1-G5, and H1-H5 in eight areas A-H on the floor of a large space and high ceiling area in a large commercial facility.

[0124] For example, if a fire breaks out in area A, of the flame detectors A1 to A3 for area (area) identification and A4 and A5 for AND shown in Figure 4, one flame detector each for area (area) identification and AND will be activated to detect the fire.

[0125] Next, in step 203, it is determined in which of the eight areas A to H on the floor surface of the large space and high ceiling portion the fire has broken out, and in step 205, the area in which the fire will be extinguished is specified.

[0126] That is, based on detection signals sent from flame detectors A1 to A5, B1 to B5, C1 to C5, D1 to D5, E1 to E5, F1 to F5, G1 to G5, and H1 to H5 to the water discharge type sprinkler system control panel 14x via systems (a) to (l), the water discharge type sprinkler system control panel 14x determines in which of the eight areas A to H on the floor surface of the large space and high ceiling area a fire has occurred, and specifies the area in which to extinguish the fire.

[0127] That is, in the above step 201, for example, when the outbreak of a fire is detected in area A, in the above step 203, a detection signal is sent from the flame detectors A1 to A5 to the water-discharge sprinkler system control panel 14x via the line (a) and the line (e).

[0128] System (e) is the system to which the AND detector is connected. As a measure to prevent erroneous discharge of water due to malfunction of the flame detector, water is discharged when the flame detector of the area (region) specific system and the AND system is activated.

[0129] Then, the water-discharge sprinkler system control panel 14x determines the area where the fire has occurred as area A based on the detection signals sent from the flame detectors A1 to A5, and in step 205 above, identifies the area where fire extinguishing is to be performed as area A.

[0130] Based on this, the water-discharge type sprinkler system control panel 14x controls the water-discharge monitor control unit 5x and the pressurized water supply system unit 7x so that water is discharged to the area where the fire has occurred.

[0131] In step 209, the linked start-up process is started based on the control by the water discharge monitor control unit 5x.

[0132] Then, in step 211, as an interlocking start process, the rotation time control of the monitor nozzle 3 of the water discharge monitor 1 corresponding to that region is performed.

[0133] 1 to 5 and 15, the operation of the water discharge monitor 1 by controlling the rotation time of the monitor nozzle 3 in areas A to H on the floor surface of a large space or a high ceiling portion where a fire has broken out will be described below.

[0134] If the area where the fire has occurred is a large space, area A on the floor of the high ceiling, based on the control of the water discharge monitor control unit 5x, in the timer settings for controlling the rotation time in area A, the value of the downward operation timer of the tilt motor 1x13 in the tilt direction is 6.75 seconds, and the value of the rightward operation timer of the rotation motor 1x8 in the rotation direction is 7.5 seconds, so the tilt motor 1x13 in the tilt direction and the rotation motor 1x8 in the rotation direction operate for the timer values.

[0135] Therefore, the monitor nozzle 3x of the water discharge monitor 1x rotates downward by 45° from the upper elevation limit and rotates rightward by 50° from the left rotation limit.

[0136] That is, the monitor nozzle 3x of the water discharge monitor 1x is directed toward the target position of area A on the floor surface of the large space with a high ceiling, as shown in FIG.

[0137] If the area where the fire occurred is area B on the floor of a large open space with a high ceiling, the timer settings for controlling the rotation time in area B will cause the downward operation timer of tilt motor 1x13 in the tilt direction to have a value of 6.75 seconds, and the rightward operation timer of rotation motor 1x8 in the rotation direction to have a value of 19.5 seconds, so tilt motor 1x13 in the tilt direction and rotation motor 1x8 in the rotation direction will operate for the timer values.

[0138] Therefore, the monitor nozzle 3x of the water discharge monitor 1x rotates downward by 45° from the upper elevation limit and rotates rightward by 130° from the left rotation limit.

[0139] That is, the monitor nozzle 3x of the water discharge monitor 1x is directed toward the target position of area B on the floor surface of the large space with a high ceiling, as shown in FIG.

[0140] If the area where the fire occurred is area C on the floor of a large open space with a high ceiling, the timer settings for controlling the rotation time in area C will cause the downward operation timer of tilt motor 1x13 in the tilt direction to have a value of 5.25 seconds, and the rightward operation timer of rotation motor 1x8 in the rotation direction to have a value of 9 seconds, so tilt motor 1x13 in the tilt direction and rotation motor 1x8 in the rotation direction will operate for the timer values.

[0141] Therefore, the monitor nozzle 3x of the water discharge monitor 1x rotates downward by 35° from the upper elevation limit and rotates rightward by 60° from the left rotation limit.

[0142] That is, the monitor nozzle 3x of the water discharge monitor 1x is directed toward the target position of area C on the floor surface of the large space with a high ceiling, as shown in FIG.

[0143] If the area where the fire occurred is area D on the floor of a large open space with a high ceiling, the timer settings for controlling the rotation time in area D will cause the downward operation timer of tilt motor 1x13 in the tilt direction to have a value of 5.25 seconds, and the rightward operation timer of rotation motor 1x8 in the rotation direction to have a value of 18 seconds, so tilt motor 1x13 in the tilt direction and rotation motor 1x8 in the rotation direction will operate for the timer values.

[0144] Therefore, the monitor nozzle 3x of the water discharge monitor 1x rotates downward by 35° from the upper elevation limit and rotates rightward by 120° from the left rotation limit.

[0145] That is, the monitor nozzle 3x of the water discharge monitor 1x is directed toward a target position of area D on the floor surface of the large space with a high ceiling, as shown in FIG.

[0146] If the area where the fire occurred is area E on the floor of a large open space with a high ceiling, the timer settings for controlling the rotation time in area E will set the downward operation timer of tilt motor 1x13 in the tilt direction to 3.75 seconds, and the rightward operation timer of rotation motor 1x8 in the rotation direction to 10.2 seconds, so tilt motor 1x13 in the tilt direction and rotation motor 1x8 in the rotation direction will operate for the timer values.

[0147] Therefore, the monitor nozzle 3x of the water discharge monitor 1x rotates downward by 25° from the upper elevation limit and rotates rightward by 68° from the left rotation limit.

[0148] That is, the monitor nozzle 3x of the water discharge monitor 1x is directed toward the target position of area E on the floor surface of the large space with a high ceiling, as shown in FIG.

[0149] If the area where the fire occurred is area F on the floor of a large open space with a high ceiling, the timer settings for controlling the rotation time in area F will cause the downward operation timer of tilt motor 1x13 in the tilt direction to have a value of 3.75 seconds, and the rightward operation timer of rotation motor 1x8 in the rotation direction to have a value of 16.8 seconds, so tilt motor 1x13 in the tilt direction and rotation motor 1x8 in the rotation direction will operate for the timer values.

[0150] Therefore, the monitor nozzle 3x of the water discharge monitor 1x rotates downward by 25° from the upper elevation limit and rotates rightward by 112° from the left rotation limit.

[0151] That is, the monitor nozzle 3x of the water discharge monitor 1x is directed toward a target position of area F on the floor surface of a large space with a high ceiling, as shown in FIG.

[0152] If the area where the fire occurred is area G on the floor of a large open space with a high ceiling, the timer settings for controlling the rotation time in area G will set the downward operation timer of tilt motor 1x13 in the tilt direction to 3 seconds, and the rightward operation timer of rotation motor 1x8 in the rotation direction to 11.25 seconds, so tilt motor 1x13 in the tilt direction and rotation motor 1x8 in the rotation direction will operate for the timer values.

[0153] Therefore, the monitor nozzle 3x of the water discharge monitor 1x rotates downward by 20° from the upper elevation limit and rotates rightward by 75° from the left rotation limit.

[0154] That is, the monitor nozzle 3x of the water discharge monitor 1x is directed toward a target position on an area G on the floor surface of a large space with a high ceiling, as shown in FIG.

[0155] If the area where the fire occurred is area H on the floor of a large open space with a high ceiling, the timer settings for controlling the rotation time in area H will cause the downward operation timer of tilt motor 1x13 in the tilt direction to have a value of 3 seconds, and the rightward operation timer of rotation motor 1x8 in the rotation direction to have a value of 15.75 seconds, so tilt motor 1x13 in the tilt direction and rotation motor 1x8 in the rotation direction will operate for the timer values.

[0156] Therefore, the monitor nozzle 3x of the water discharge monitor 1x rotates downward by 20° from the upper elevation limit and rotates rightward by 105° from the left rotation limit.

[0157] That is, the monitor nozzle 3x of the water discharge monitor 1x is directed toward a target position of area H on the floor surface of a large space with a high ceiling, as shown in FIG.

[0158] In this manner, in the embodiment of the present invention, a gear motor with a brake is used as the drive motor for the monitor nozzle 3x of the water discharge monitor 1x, and the rotation time of the gear motor with a brake is controlled to align the monitor nozzle 3 with the target position of a specified area, thereby obtaining the following effects. (1) Since it does not use servo motors, encoders, and relay panels as in the past, it is inexpensive and requires a compact installation space. (2) System maintenance is easy, enabling quick and effective fire extinguishing.

[0159] In this case, the operation timer value is set so that the monitor nozzle 3x of the water discharge monitor 1x faces upward as the floor area of ​​the large space or high ceiling moves away from the monitor nozzle 3x. This allows accurate water discharge to be achieved in the area where the fire has occurred.

[0160] In step 209 of FIG. 16, the rotation time of the monitor nozzle 3x of the water-discharge monitor 1x is controlled, and the monitor nozzle 3x is driven to the aimed position. Then, in step 213, fire-extinguishing water 7x11 is discharged from the monitor nozzle 3x.

[0161] That is, an open signal is output from the water discharge sprinkler system control panel 14x to the solenoid valve in the automatic water discharge valve 7x17, and the automatic water discharge valve 7x17 opens. This causes the fire extinguishing water 7x11 to be sent to the pipe 1x1 via the pipe 7x13, and the fire extinguishing water 7x11 is discharged from the water discharge monitor nozzle 3x. Then, the pressure switch 7x15 detects a drop in the pressure of the fire extinguishing water 7x11 (compressed air in the pressure tank 7x7) in the pipe 7x13, and this signal is input to the pump control panel 7x5, which starts the fire extinguishing pump 7x3. This causes the fire extinguishing water 7x11 to be supplied to the water discharge monitor 1x through the pipe 7x13.

[0162] Then, fire-extinguishing water 7x11 is discharged from the monitor nozzle 3x which is driven and set at the target position.

[0163] Here, if the area where the fire has occurred is area A on the floor of a large space with a high ceiling, extinguishing water 7x11 is discharged from the monitor nozzle 3x of the water discharge monitor 1x, which is aimed 45° downward from the upper limit of elevation and 50° to the right from the left limit of rotation, thereby extinguishing the fire in area A.

[0164] The present invention is not limited to the above-described embodiment of the invention, but can be embodied in other forms by making appropriate modifications.

[0165] In this embodiment, when a fire is detected by flame detectors A1 to A5 and the area to be sprayed with water is identified, water is automatically sprayed under the control of the water-discharge monitor control unit 5x. However, the area to be extinguished can also be identified by an operator confirming the area where the fire has occurred and pressing a button for the area of ​​the water-discharge monitor control unit 5x corresponding to the area where the fire has occurred, and water can be sprayed after the operator has confirmed that personnel have evacuated from that area.

[0166] As mentioned above, the image from the ITV camera 8x is displayed on the display unit 13x1 of the ITV control panel 13x, so that the operator can check the fire extinguishing status, etc. by looking at the image and, depending on the fire extinguishing status, etc., can, for example, manually change the direction of the monitor nozzle 3x.

[0167] In addition, the timer setting for the rotation time control for the area of ​​the monitor nozzle 3x on the handy touch panel display 6x may be, for example, a direct input of the angle of rotation movement rather than inputting the number of seconds for the operation timer setting. In this case, the handy touch panel display has a function of converting the input angle into a number of seconds input for the timer setting for the rotation time control and setting it as the value of the operation timer.

[0168] The present invention may also be applied to a fire extinguishing system that utilizes a foam fire extinguishing agent other than water for extinguishing.

[0169] In this embodiment, the floor surface of the large space and high ceiling area is divided into eight areas A to H, and one water-discharge monitor is used to spray water onto these eight areas A to H to extinguish the fire, but this is not limited to this. Water-discharge monitors may be provided for each of the eight areas on the floor surface of the large space and high ceiling area, and water may be sprayed onto each of the eight areas to extinguish the fire.

[0170] In this embodiment, the configuration includes the water-discharge monitor control unit 5x, but the functions of the water-discharge monitor control unit 5x may be integrated into the water-discharge sprinkler system control panel 14x, and the water-discharge monitor control unit 5x may be omitted.

[0171] In this embodiment, the configuration includes the ITV camera 8x and the ITV control panel 13x, but the ITV camera 8x and the ITV control panel 13x may be omitted. [Explanation of symbols]

[0172] A~H: Large spaces, high ceiling areas X…Fire extinguishing system 1x…Water discharge monitor 3x…Monitor nozzle 5x…Water discharge monitor control unit 6x…Handy touch panel display 7x…Pressurized water supply equipment section 9x...Sensing section 14x…Water discharge sprinkler equipment control panel 15x…Water discharge sprinkler equipment on-site operation panel 20...Gear motor with brake

Claims

1. A fire extinguishing system for a building having a large space and a high ceiling for extinguishing a fire on the floor surface of a large space and a high ceiling by discharging a fire extinguishing agent, A detection unit that detects the occurrence of a fire on the floor surface of the large space and high ceiling portion; a monitor having a monitor nozzle for discharging the extinguishing agent; A monitor control unit that drives and controls the monitor so as to align the monitor nozzle with a location where a fire has occurred; a control means for controlling the monitor control unit to specify a location of a fire on the floor of the large space or high ceiling based on a detection signal from the detection unit when the detection unit detects an outbreak of a fire on the floor of the large space or high ceiling, and to aim the monitor nozzle at the specified location of the fire, When a fire breaks out on the floor of the large space or high ceiling area and the monitor nozzle is aligned with the location of the fire, the control means controls the monitor control unit to drive the monitor nozzle of the monitor by time-controlling a gear motor with a brake, and release the extinguishing agent from the monitor nozzle aligned with the location of the fire, and the motor of the gear motor with a brake is a motor that does not use a servo motor / encoder.

2. 2. A fire extinguishing system as described in claim 1, wherein the gear motor with a brake comprises a non-excitation operated brake and motor, and the time control of the gear motor with a brake by the monitor control unit determines the time to move the monitor nozzle to the aiming position based on the moving speed of the monitor nozzle by the motor, and drives and controls the brake so that the monitor nozzle is driven by the motor for only that time.

3. 3. The fire extinguishing system according to claim 2, further comprising a pressurized water supply unit for supplying the extinguishing agent to the monitor through a pipe for the extinguishing agent, the extinguishing agent being water for extinguishing.

4. The fire extinguishing system described in claim 3, wherein the monitor control unit is provided with an operation unit for setting the aiming position of the monitor nozzle according to the area on the floor surface of the large space and high ceiling portion, and the monitor control unit works in conjunction with the operation unit to set the aiming position of the monitor nozzle according to the area.

5. The fire extinguishing system according to claim 4, wherein the operation unit is a handy touch panel display.

6. 6. The fire extinguishing system according to claim 1, wherein the floor surface of the large space and high ceiling portion is a floor surface of a large space and high ceiling portion in a large-scale commercial facility.

7. A fire extinguishing method for a fire extinguishing system including a detector that detects the occurrence of a fire on a floor surface of a large space or a high ceiling, a monitor having a monitor nozzle for discharging a fire extinguishing agent, a monitor controller that drives and controls the monitor so as to aim the monitor nozzle at a location of the fire, and a control means that controls the monitor controller, detecting an occurrence of a fire on a floor surface of the large space and high ceiling portion by the sensing unit; a step of, when the occurrence of a fire is detected on the floor surface of the large space or the high ceiling portion by the detection unit, identifying a location of the fire on the floor surface of the large space or the high ceiling portion by the control means based on a detection signal from the detection unit; a step of controlling the monitor control unit by the control means so as to aim the monitor nozzle at the location of the fire on the floor surface of the large space and the high ceiling portion identified; and releasing the extinguishing agent from the monitor nozzle aligned with the location of the fire, When a fire breaks out on the floor of the large space or high ceiling and the monitor nozzle is aligned with the location of the fire, a gear motor with a brake is time-controlled to drive the monitor nozzle of the monitor, and the extinguishing agent is discharged from the monitor nozzle aligned with the location of the fire, and the motor of the gear motor with a brake is a motor that does not use a servo motor / encoder.

8. 8. A fire extinguishing method as described in claim 7, wherein the time control of the gear motor with brake determines the time for the monitor nozzle to reach the aiming position based on the moving speed of the monitor nozzle by the motor, and drives and controls the brake so as to drive the monitor nozzle by the motor for only that time.

9. 9. The fire extinguishing method according to claim 7 or 8, wherein the fire extinguishing system further comprises a pressurized water supply equipment unit for supplying the extinguishing agent to the monitor through a pipe for the extinguishing agent, and extinguishing water is used as the extinguishing agent.

10. The fire extinguishing method according to claim 8, wherein the monitor control unit is provided with an operation unit for setting the aiming position of the monitor nozzle according to an area on the floor surface of the large space or high ceiling portion, and the monitor control unit works in conjunction with the operation unit to set the aiming position of the monitor nozzle according to the area.

11. The fire extinguishing method according to claim 10, wherein the operation unit is a handy touch panel display.

Images